Results 1 to 10 of about 586,773 (264)

Differences of Positive Linear Operators on Simplices [PDF]

open access: yesJournal of Function Spaces, 2021
The aim of the paper is twofold: we introduce new positive linear operators acting on continuous functions defined on a simplex and then estimate differences involving them and/or other known operators.
Ana-Maria Acu   +2 more
doaj   +2 more sources

On the iterates of positive linear operators

open access: yesJournal of Approximation Theory, 2011
Let \(U\) be a positive linear operator on \(C[0,1]\) that leaves the linear functions, \(P^1\), invariant. The paper presents a simple short proof of the following: Theorem: If there is a continuous function \(f\) such that \(Uf-f\) has no zeros in \((1,0)\) then \(U^k g\) converges to the projection onto \(P^1\) that interpolates to \(g\) at \(0 ...
Mircea Ivan
exaly   +3 more sources

Summation process of positive linear operators

open access: yesComputers and Mathematics With Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Özlem G. Atlihan, Cihan Orhan
exaly   +3 more sources

Eventually positive semigroups of linear operators

open access: yesJournal of Mathematical Analysis and Applications, 2016
We develop a systematic theory of eventually positive semigroups of linear operators mainly on spaces of continuous functions. By eventually positive we mean that for every positive initial condition the solution to the corresponding Cauchy problem is positive for large enough time.
Daniel Daners, Jochen Glück
exaly   +4 more sources

Estimates for the Differences of Certain Positive Linear Operators

open access: yesMathematics, 2020
The present paper deals with estimates for differences of certain positive linear operators defined on bounded or unbounded intervals. Our approach involves Baskakov type operators, the kth order Kantorovich modification of the Baskakov operators, the ...
Ana Maria Acu, Sever Hodiş, Ioan Rașa
doaj   +3 more sources

Approximation by positive linear operators

open access: yesJournal of Numerical Analysis and Approximation Theory, 1995
Not available.
Ioan Gavrea
doaj   +4 more sources

A sequence of positive linear operators

open access: yesJournal of Numerical Analysis and Approximation Theory, 1995
Not available.
M. Ivan, I. Rașa
doaj   +4 more sources

Composition and Decomposition of Positive Linear Operators (VIII)

open access: yesAxioms, 2023
In a series of papers, most of them authored or co-authored by H. Gonska, several authors investigated problems concerning the composition and decomposition of positive linear operators defined on spaces of functions.
Ana Maria Acu   +2 more
doaj   +1 more source

Resolvent Positive Linear Operators Exhibit the Reduction Phenomenon [PDF]

open access: yes, 2011
The spectral bound, s(a A + b V), of a combination of a resolvent positive linear operator A and an operator of multiplication V, was shown by Kato to be convex in b \in R.
Cantrell   +15 more
core   +3 more sources

Tensor Products, Positive Linear Operators, and Delay-Differential Equations [PDF]

open access: yes, 2012
We develop the theory of compound functional differential equations, which are tensor and exterior products of linear functional differential equations. Of particular interest is the equation $\dot x(t)=-\alpha(t)x(t)-\beta(t)x(t-1)$ with a single delay,
Mallet-Paret, John, Nussbaum, Roger D.
core   +1 more source

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